Becoming a Marine is a long, physical and arduous process, and thousands of Americans have gone through it. KING 5's Christie Johnson, a.k.a. G.I. Johnson, is at the Marine Corps. Recruit Depot in San Diego to learn what it takes to become a Marine.

G.I. Johnson's boot camp adventures continues all week on KING 5. On Wednesday, Christie will land at Air Station Miramar. Watch her latest reports on KING 5 Morning News.

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